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61,005 resultsShowing papers similar to A physical chemistry lens on environmental nanoplastics analysis challenges. Part II: detection techniques – principles, limitations and future directions
ClearThe Challenge of the Analysis of Nanoplastics in the Environment: Current Status and Perspectives
This review examines the analytical challenges of detecting and characterising nanoplastics in environmental samples, presenting the state of the art in size determination, chemical composition analysis, and quantification techniques, as well as a survey of nanoplastic model materials used in the literature.
Advancements in environmental nanoplastics research
This review synthesises advances in environmental nanoplastics research, discussing distinctions between nanoplastics and microplastics in physicochemical properties, limitations in current analytical methods for environmental samples, and gaps between laboratory exposure studies and real-world concentrations. The authors highlight emerging evidence of nanoplastics in human organs and excretions and argue that methodological breakthroughs will usher in a 'nano era' of plastic pollution research.
Nanoplastics: From Separations to Analysis—Challenges and Limitations
This review examines the challenges of analyzing nanoplastics in environmental samples, from sample preparation to identification. Researchers found that techniques commonly used for larger microplastics are often ineffective for nanoplastics, and that isolating these tiny particles from complex environmental samples remains a major technical hurdle. The study summarizes the advantages and limitations of current microscopic, spectroscopic, and thermal analysis methods and calls for standardized approaches.
New Analytical Approaches for Effective Quantification and Identification of Nanoplastics in Environmental Samples
This review assessed new analytical approaches for quantifying and identifying nanoplastics in environmental samples, highlighting fundamental challenges in detection due to their small size and the need for improved methods to understand nanoplastic contamination levels.
Physicochemical characterization and quantification of nanoplastics: applicability, limitations and complementarity of batch and fractionation methods
Researchers evaluated a suite of techniques for measuring the size, shape, and chemical makeup of nanoplastics — plastic particles smaller than 1 micrometer — and found that no single method works for all sample types, especially when particles vary in size or clump together. Combining multiple complementary techniques is essential for reliable nanoplastic characterization, particularly in complex environmental or biological samples.
Challenges and Recent Analytical Advances in Micro/Nanoplastic Detection
This review covers the challenges scientists face in detecting and measuring micro- and nanoplastics in the environment, especially for particles smaller than one micrometer. Current analytical methods have significant limitations for identifying nanoplastics due to their extremely small size and diverse chemical compositions. Improving detection technology is essential for accurately assessing how much microplastic contamination exists in water, food, and human tissues.
Analytical methods and environmental processes of nanoplastics
This review examined current analytical methods for extracting, separating, identifying, and quantifying nanoplastics in environmental matrices, and summarized knowledge on their fate and transport pathways in the environment. The authors identified key gaps including detection limits too high to measure ultralow nanoplastic concentrations and an over-reliance on spherical polystyrene models that fail to represent the irregular shapes found in nature.
The emergence of grass root chemical ecology
This paper discusses nanoplastics as an emerging environmental concern with significant knowledge gaps due to the lack of effective analytical methods for detecting and characterizing particles at the nanoscale. Better tools for identifying and measuring nanoplastics are urgently needed to assess their true prevalence and health risks.
Microplastics in the environment: Challenges in analytical chemistry - A review
This review examined the analytical chemistry challenges of detecting and characterizing microplastics in environmental samples, highlighting ongoing issues with standardization, method sensitivity, and comparability across studies.
A critical viewpoint on current issues, limitations, and future research needs on micro- and nanoplastic studies: From the detection to the toxicological assessment.
This critical review examines the current methods for detecting and characterizing micro- and nanoplastics in various environmental samples, as well as reported toxic effects from in vivo and in vitro studies. The authors found that while substantial effort has been made to understand microplastic behavior, the scientific community is still far from a complete understanding of how these particles behave in biological systems. The review calls for improved standardized protocols and more studies focused on uptake kinetics, accumulation, and biodistribution.
A review on analytical performance of micro- and nanoplastics analysis methods
This review evaluated the analytical methods currently available for detecting and measuring micro- and nanoplastics in various environments. Researchers compared techniques based on their accuracy, sensitivity, and practical limitations, noting that particle size and the complexity of the surrounding material significantly affect method performance. The study identifies key challenges and provides guidance on selecting appropriate analytical approaches for different types of plastic pollution research.
Current Methods and Prospects for Analysis and Characterization of Nanomaterials in the Environment
This review summarizes current methods for analyzing and characterizing nanomaterials, including nanoplastics, in environmental samples such as water, soil, and air. Researchers evaluated techniques for sample preparation, separation, and detection, noting that low concentrations and structural complexity in natural settings remain major analytical challenges. The study identifies emerging approaches that may improve our ability to assess real-world nanoplastic exposure scenarios for environmental risk assessment.
Methods and challenges in the detection of microplastics and nanoplastics: a mini‐review
This review evaluated the strengths and weaknesses of analytical methods used to detect and identify microplastics and nanoplastics, including microscopy, spectroscopy, and mass spectrometry techniques. Researchers identified key challenges such as distinguishing genuine environmental microplastics from contamination introduced during sample collection and processing. The study provides recommendations for improving data quality and reliability in microplastic research.
The micro-, submicron-, and nanoplastic hunt: A review of detection methods for plastic particles
This review systematically summarizes detection and characterization methods for micro-, submicron-, and nanoplastics, providing recommendations for method validation, standardization, and analytical pathways suited to different sample types and research goals.
Chemical Analysis of Microplastics and Nanoplastics: Challenges, Advanced Methods, and Perspectives
This review covers the latest laboratory methods for detecting and measuring microplastics and nanoplastics in environmental samples like water, food, and air. Identifying these tiny particles is extremely challenging because they vary enormously in size, shape, and plastic type, and concentrations can differ by billions of times between samples. Better standardized detection methods are essential for accurately understanding how much microplastic humans are actually exposed to.
Challenges in the search for nanoplastics in the environment—A critical review from the polymer science perspective
Researchers reviewed the scientific challenges in detecting nanoplastics — plastic particles smaller than 1 micrometer — in natural environments, noting that none had been confirmed in the wild at the time of the study despite being suspected to pose serious environmental risks. The review highlights the urgent need for better sampling, separation, and detection methods, since the very techniques needed to find nanoplastics are still being developed.
Current techniques for identifying, quantifying, and characterizing micro and nanoplastics with emphasis on strengths, limitations, and challenges
Researchers reviewed current analytical techniques for identifying, quantifying, and characterizing micro- and nanoplastics across environmental matrices. The review highlights the strengths and limitations of methods including FTIR, Raman spectroscopy, and pyrolysis-GC/MS, and calls for standardization to improve comparability across studies.
Searching Nanoplastics: From Sampling to Sample Processing
This review addresses the challenges of sampling and processing nanoplastics from environmental matrices, discussing how their infinitesimal size and physical diversity complicate detection, characterization, and quantification efforts.
Quantifying micro- and nanoplastics
This work addresses methodological approaches for quantifying micro- and nanoplastics in environmental samples, examining analytical techniques, sampling strategies, and measurement challenges. The publication is part of the international research literature on standardizing plastic particle detection and quantification methods.
Critical gaps in nanoplastics research and their connection to risk assessment
This paper identifies critical knowledge gaps in nanoplastics research and explains why they matter for assessing health and environmental risks. Nanoplastics are harder to detect and measure than larger microplastics, meaning current pollution estimates likely undercount total plastic contamination. The authors call for better detection methods and standardized research approaches to understand the true scope of nanoplastic exposure.
How small a nanoplastic can be? A discussion on the size of this ubiquitous pollutant
Researchers explored the question of how small nanoplastic particles can actually be, highlighting the lack of standardized size definitions for this emerging pollutant. They examined the analytical challenges involved in detecting and characterizing nanoplastics at the smallest scales. The study calls for a clearer framework around nanoplastic size boundaries, since particle size is a key factor influencing toxicity and environmental behavior.
The Emerging of Microplastic and Nanoplastic as Pollutants and their Characterization and Analysis
This review presents an integrated approach to sampling, sample preparation, and analytical methods for detecting microplastics and nanoplastics in solid and aqueous environmental samples, discussing current challenges and emerging methodologies for more accurate characterization.
Nano-plastics and their analytical characterisation and fate in the marine environment: From source to sea
Researchers reviewed the sources, environmental fate, organism interactions, and analytical detection methods for nano-sized plastic polymers in the marine environment, concluding that nanoplastics pose the greatest ecological risk among plastic size fractions and that standardized analytical protocols for nanoplastic characterization are urgently needed.
A comprehensive toolkit for micro- to nanoplastic analysis
This review presents a unified analytical toolkit integrating mass-based, particle-based, and morphology-based approaches to enable reliable detection, quantification, and standardization of micro- and nanoplastics across diverse environmental matrices. The framework is intended to improve comparability across studies and support robust monitoring of plastic pollution.